So I went ahead and made a Doujin page as a container for the various pairing tags. I've tagged the few images and will be going through chapters as I make my way through them! Tag suggestions are welcome to speed things up.
I must bashfully admit I have not read the whole series! I'm sure there are couples I didn't tag - please feel free to @me with them and I'll add them to the pool.
I think these are all the pairings:
Mahi x Mahi
Ai x Chie
Nononon x Yumimi
Honoka x Elisha
Michiru x Airi
Kanae x Haruka
Mari x Yuu
Miyoshi x Ayano
Onibi x Nao
Shizuka x Mio
Midori x Hibiki
Mask x Kaoru
Mayuyu x Mariri
Btw I listed them in the order I like them, favorites first. ( ͡~ ͜ʖ ͡°)
Yeah, having tags on the chapters depicting which pairings feelings are centered would be nice. Sometimes I'm just like, "Who were these two again?"
Also, MahiMahi is top two ship. Honestly, one of these days one of them, or probably both at the same time, is gonna wake up and realize, "Ah, oh no, my feelings aren't pure anymore. I wanna hold her, I wanna kiss her, I wanna..."